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<?php |
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namespace Brendt\Stitcher\Adapter; |
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use Brendt\Stitcher\Exception\ConfigurationException; |
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use Brendt\Stitcher\Exception\IdFieldNotFoundException; |
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use Brendt\Stitcher\Exception\VariableNotFoundException; |
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use Brendt\Stitcher\Factory\AdapterFactory; |
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use Brendt\Stitcher\Site\Page; |
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/** |
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* The CollectionAdapter takes a page with a collection of entries, and generates a detail page for each entry in the |
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* collection. |
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* |
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* Sample configuration: |
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* |
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* /examples/{id}: |
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* template: examples/detail |
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* data: |
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* example: collection.yml |
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* adapters: |
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* collection: |
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* variable: example |
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* field: id |
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* |
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* @todo Rename `field` option to `urlVariable` |
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*/ |
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class CollectionAdapter extends AbstractAdapter |
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{ |
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/** |
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* @param Page $page |
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* @param mixed $filter |
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* |
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* @return Page[] |
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* @throws IdFieldNotFoundException |
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* @throws VariableNotFoundException |
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*/ |
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public function transform(Page $page, $filter = null) { |
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$config = $page->getAdapterConfig(AdapterFactory::COLLECTION_ADAPTER); |
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$this->validateConfig($config, $page); |
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$variable = $config['variable']; |
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$source = $page->getVariable($variable); |
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$field = $config['field']; |
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$pageId = $page->getId(); |
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$entries = $this->getData($source); |
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$result = []; |
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foreach ($entries as $entry) { |
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if (!isset($entry[$field]) || ($filter && $entry[$field] !== $filter)) { |
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continue; |
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} |
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$fieldValue = $entry[$field]; |
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$url = str_replace('{' . $field . '}', $fieldValue, $pageId); |
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$entryPage = clone $page; |
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$entryPage |
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->removeAdapter(AdapterFactory::COLLECTION_ADAPTER) |
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->setVariableValue($variable, $entry) |
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->setVariableIsParsed($variable) |
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->setId($url); |
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$result[$url] = $entryPage; |
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} |
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return $result; |
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} |
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/** |
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* @param array $config |
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* @param Page $page |
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* |
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* @return void |
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* @throws ConfigurationException |
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* @throws IdFieldNotFoundException |
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* @throws VariableNotFoundException |
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*/ |
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protected function validateConfig(array $config, Page $page) { |
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if (!isset($config['field'], $config['variable'])) { |
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throw new ConfigurationException('Both the configuration entry `field` and `variable` are required when using the Collection adapter.'); |
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} |
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$variable = $config['variable']; |
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if (!$page->getVariable($variable)) { |
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throw new VariableNotFoundException("Variable \"{$variable}\" was not set as a data variable for page \"{$page->getId()}\""); |
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} |
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$field = $config['field']; |
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$pageId = $page->getId(); |
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if (strpos($pageId, '{' . $field . '}') === false) { |
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throw new IdFieldNotFoundException("The field \"{{$field}}\" was not found in the URL \"{$page->getId()}\""); |
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} |
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} |
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} |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.